I've got a set of oxford muff's on the bike, the secret is you need bolt them to the end of the bar ends!
1. take the bar end of and drill a 6mm hole inside the allen key hole.
2. tap & thread said hole.
3. Obtain
- M6x20 allen bolt
- 2x 6mm*20mm washers (one on the inside and one on the outside of the muff)
- 1x 6mm*20mm rubber/plastic washer (between the bar end and the inside metal washer)
4. Then make a hole 20mm back from the large plastic cuff on the muff, just where the seem meet.
5. Use the allen bolt & washer from above.
6. Use 1/2 cable ties to fix the other end of the juff to the throttle/brake/clutch cables etc.
So as someone has already mentioned, the above with some heated grips and you'll never get cold hands again. I have done the same thing with a cheap pair of muffs and the hire bike I am currently using, would you like me to take pics...?